TPS61081DRCRG4

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TPS61081DRCRG4 Application Field and Working Principle

TPS61081DRCRG4 is an integrated single power stage for high-efficiency, synchronous buck converter that provides a solution for low power, consumer portable applications. It integrates a P-channel power MOSFET and N-channel synchronous MOSFET with built-in I2C interface and covers the device from 1.5V to 5.5V output voltage range.

Application Field

The TPS61081DRCRG4 is designed for low power consumer applications and portable products that need a very small, low energy consumption and high-energy efficiency power supply. It is compatible with 3V and 5V I2C interface development boards. It is used in notebook and tablet PCs, gaming consoles, digital cameras, remote controls, and more.

Working Principle

The TPS61081DRCRG4 works by using its integrated P-channel and N-channel MOSFETs to control the transfer of power between two points - the input voltage source (Vin) and the output voltage (Vout). When the input voltage is higher than the output voltage, the power is switched from the input to the output through the P-channel MOSFET. When the input voltage is lower than the output voltage, the power is switched from the output to the input through the N-channel MOSFET. The integrated I2C interface provides control signals to the device to enable and disable the output voltage, switch the power source and monitor the status of the supply.

The TPS61081DRCRG4 also integrates a high side current source that helps to reduce the output ripple and improve efficiency. The current source is used to regulate the inductor current during the on-time of the upper switch. It also reduces the peak inductor current and helps reduce the power loss. This helps to improve the power efficiency significantly.

In order to achieve precise output voltage regulation, the TPS61081DRCRG4 also features an adaptive loop-compensation technology which helps to reduce external component count, reduce the overall circuit size, and reduce power dissipation.

Overall, the TPS61081DRCRG4 is an integrated and efficient power stage solution for low power consumer applications. It helps to reduce the size, cost and power dissipation while improving the overall system efficiency.

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